STOCK TITAN

TERAWULF (NASDAQ: WULF) CAO converts 10,000 RSUs, holds 48,898 shares

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

TERAWULF INC. Chief Accounting Officer William Joseph Tanimoto exercised restricted stock units into 10,000 shares of common stock. These RSUs vested on the first anniversary of June 24, 2025, in line with their terms and subject to his continued service.

After this transaction, he directly holds 48,898 shares of common stock and 20,000 restricted stock units. The remaining RSUs are scheduled to vest on the second and third anniversaries of June 24, 2025, contingent on ongoing employment. The filing shows a compensation-related equity vesting event, with no open-market buying or selling.

Positive

  • None.

Negative

  • None.
Insider Tanimoto William Joseph
Role Chief Accounting Officer
Type Security Shares Price Value
Exercise Restricted Stock Units 10,000 $0.00 --
Exercise Common stock, $0.001 par value per share 10,000 $0.00 --
Holdings After Transaction: Restricted Stock Units — 20,000 shares (Direct, null); Common stock, $0.001 par value per share — 48,898 shares (Direct, null)
Footnotes (1)
  1. The Reporting Person received Restricted Stock Units which vested in accordance with their terms upon the first anniversary of June 24, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share. The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date. The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
Shares acquired via RSU conversion 10,000 shares Common stock received from vested restricted stock units
Common shares held after transaction 48,898 shares Direct ownership by Chief Accounting Officer after exercise
Restricted stock units remaining 20,000 RSUs RSU balance following vesting and conversion of 10,000 units
Transaction date June 24, 2026 Date of RSU exercise and share acquisition
Par value of common stock $0.001 per share Par value of TERAWULF common stock underlying the RSUs
Restricted Stock Units financial
"The Reporting Person received Restricted Stock Units which vested in accordance with their terms"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
contingent right financial
"Each Restricted Stock Unit represents a contingent right to receive one share"
derivative exercise/conversion financial
"transaction_action": "derivative exercise/conversion""
vested in accordance with their terms financial
"The Restricted Stock Units vested in accordance with their terms upon the first anniversary"
anniversaries of June 24, 2025 financial
"The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025"
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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Tanimoto William Joseph

(Last)(First)(Middle)
C/O TERAWULF INC.
9 FEDERAL STREET

(Street)
EASTON MARYLAND 21601

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
TERAWULF INC. [ WULF ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Accounting Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/24/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common stock, $0.001 par value per share06/24/2026M10,000A(1)48,898D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(2)06/24/2026M10,000 (3) (3)Common stock, $0.001 par value per share10,000(4)20,000D
Explanation of Responses:
1. The Reporting Person received Restricted Stock Units which vested in accordance with their terms upon the first anniversary of June 24, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.
2. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.
3. The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.
4. The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through each such date.
Remarks:
/s/ Stefanie C. Fleischmann, as attorney-in-fact for William J. Tanimoto06/25/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did TERAWULF (WULF) officer William Tanimoto report in this Form 4?

William Joseph Tanimoto reported exercising restricted stock units into 10,000 shares of TERAWULF common stock. The RSUs vested on the first anniversary of June 24, 2025, as part of his equity compensation package tied to continued employment.

How many TERAWULF (WULF) shares does William Tanimoto hold after the transaction?

After the transaction, William Joseph Tanimoto directly holds 48,898 shares of TERAWULF common stock. This reflects his position following the conversion of 10,000 restricted stock units into shares, as disclosed in the Form 4 insider filing.

How many restricted stock units does TERAWULF (WULF) officer Tanimoto still have?

Following the vesting and conversion of 10,000 restricted stock units, William Joseph Tanimoto retains 20,000 restricted stock units. These remaining units continue to represent contingent rights to receive TERAWULF common stock under their existing vesting schedule.

What is the vesting schedule for William Tanimoto’s TERAWULF (WULF) RSUs?

One tranche of RSUs vested on the first anniversary of June 24, 2025. The remaining restricted stock units are scheduled to vest on the second and third anniversaries of that date, provided Tanimoto remains employed or in service with TERAWULF.

Was there any open-market buying or selling in this TERAWULF (WULF) Form 4?

The Form 4 shows no open-market purchases or sales. It reflects a derivative exercise where restricted stock units converted into 10,000 common shares as they vested, a typical compensation-related equity transaction rather than a discretionary market trade.

What does each TERAWULF (WULF) restricted stock unit represent in this filing?

Each restricted stock unit represents a contingent right to receive one share of TERAWULF common stock with $0.001 par value. These units convert into shares upon vesting, subject to the officer’s continued employment or service with the company.